Sloppy localization can often let dating sim fans down.
She accidentally gets tangled up with the local police, the Shinsengumi, and the story evolves from there. It's a samurai history lesson with a Twilight twist.
Haru can be pretty pushy and consent can seem hazy at times, but all the relationship routes in the game play out in a compelling manner and Haru's prodding of boundaries leads to intriguing character insights. is not just a constant sex romp -- it's got a pretty extensive private detective and mafia story leading the actors along, and not always to the happiest conclusions.
For Women’s History Month, Manga Gamer interviewed women game creators and localizers, and one of them was No, Thank You!!! Most of her experience is of drawing women, and NTY was her first venture into the BL genre.
Generally you meet several characters, and will have to choose one to court.
In Japan, dating sim characters are referred to as “capturable” -- whether that means you capture their hearts or their bodies depends on the game.
I say "targets" because all the men you end up in relationships with are billed as "straight" and Haru is an overly-energetic, horny puppy who admits he partakes in "sexual harassment" as a work pastime.